I try my best to carefully manage it. All compostable biomatter goes into compost, with the only exception being anything salty. I also shovel up all the animal plop and mix that into the soil twice a year. I haven't done any scientific soil tests, but my plants seem to be more productive as the years have gone by, so I guess it's doing the trick. I have a lot of forested land, and my additional plan starting this year is to collect leaves, run them over with the lawn mower a bunch, use it as mulch during the growing season, and then till that into the soil in the Fall.